Dallas-based indie developer The Fun Pimps Entertainment announce 7 Days to
Die, a voxel-based sandbox game set in a post-apocalyptic environment with
FPS, survival/horror, RPG and tower defense elements they say will offer a
"unique combination of combat, crafting, exploration, and character growth." The
7 Days to Die website is online with more
details and a gameplay
trailer. Here's a feature list:

Relentless enemies will stop at nothing as they
claw, jump and break their way through the world in order to get to you. And
watch out for the unique severely mutated.

Mine and loot a multitude of items and ingredients
to survive creating hundreds of weapons, items and traps with the intuitive
and deep “Crafting System” inspired by classic adventure games but
modernized. No wiki required!

Uncover the truth as you find survivor notes that
lead to better loot from the “Dynamic Story Generation System” which puts
the player in charge of the story solving the “now what problem” that plague
most voxel games.

Play solo, Co-op online with friends or in our
unique “Zombie Nomad Mode” for a no rules experience!

Enjoy a fully destroyable voxel-based world
blowing up everything in the entire game or build it up bolstering the
defenses of an existing structure or building your own fort to try and keep
the zombies out.